moulton



(No Model.) v 3 Sheets-Sheet 1.

H.'L,. M'OULTON. GLUTGHING, UNGLUTCHING AND LOGKING GEAR.

Patented J an. 2, 1 883.

' WITNESSES:

N. PEYERS. Plmm-Lrlgw ra iur, Waihinglcn. DC.

(No M odeI.) a Sheets-Sheet 2.

H. L. MOULTON.

OLUTGHING; UNGLUTGHING AND LOOKING GEAR.

No. 270,096. Patented Jan. 2., 1883.

W 1 TN E SSE/3 INVENTOR- N PETERS. mlo-utm rn mr. Wasbinglum'KlC.

3 Sheets-Sheet 3.

' (Np Model.)

HQL. MOULTON. GL UTGHING, UNGLUTGHING AND LOOKING GEAR.

Patented Jan. 2, 1883.

INVENTOR;

WITNESSES! I *NITED STATES PATENT OFFICE.

HAMILTON L. MOULTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE JAMES SMITH YVOOLEN MACHINERY COMPANY, OF SAME PLACE.

CLUTCHING, UNCLUTGHING, AND LOOKING GEAR.

SPECIFICATION forming part of Letters Patent No. 270,096, dated January 2, 1853. Application filed November 27,1882. (Nomodel) To all'whomtt may concern:- frame, the cam, which is fast on a shaft, I, Beit known that I, HAMILTON L. MOULTON, tending to move the sleeve B in the direction a. citizen of the United States, and a resident of the arrow 51 when the said shaft is turned, of Philadelphia, Penney lvania, have invented and to unclutch it from the shaft A, and the an Improved ()lutching, Unclutching, and spring tending to move the sleeve in a con- 55 Looking Gear, of which the following is a trary direction and to clutch it to the shaft. specification. i Alockingarm,F, is pivoted at jtotheframe,

My invention relates to mechanism of which of the machine, and this arm has a shoulder, a clutch or clutches form part; and my main or, against which, when the said arm is de- 19 object is to cause a power-driven machine to pressed, bears a pin, 72, on the clutch-lever D, automatically perform the duty of clutching which thus prevents the nnclutchinlg of the and unclutching in obedience to mechanism sleeve B fromthe shaftA until the time comes which may beoperated by aslighteflbrt, either for the cam E to perform the unclutchingduty. by hand or automatically. A lever, H, is pivoted to the frame of the 15 A further object of my invention is to insure machine,and has at its upper'end a pin, 19, on 6 a determinate automatic clutching or unclutchwhich bears the inclined portion F of thelocking and the locking of the clutch in either of ing arm F. This lever H may be operated, by

the positions to which it may be moved. hand or automatically, from any working'part In the accompanying drawings, Figure J,- of the machine. The lever F has another pin,

20 Sheet 1, is an elevation partly in section of q, which projects into and is adapted to the the clutching and releasing mechanism; Fig. grooves t t of the cam G, which is loose on 2,,Sheet 2, the same as Fig. 1, but showing the the shaft 1, but turns therewith under the ciroperating parts in adit'ferent position; Fig. 3, cumstances explained hereinafter. The two Sheet 3, a vertical section on the line 1 2, Fig. grooves 25 t are so formed and arrangedon the 25 l; and Fig.4, a vertical section on the line 3 4. cam G that when the pin qis in one groove it,

A is a continuously-rotated shaft, and Ba together with the lever H, will be moved in one clutch, one part, a, of which; is, in the presdirection when the cam turns, and when the en't instance, on a cog-wheel, a, secured to the pin is in the other groove the lever will he said shaft, the other part, b, of the clutch bemoved in a contrary direction without chang- 3o ing on asleeve, B, which fits snugly on the ing the direction in which the cam is turned. said shaft A, and which has to be clutched The two grooves have abruptcommunications thereto or released therefrom by mechanism with each other, so as to form two shoulders, which forms the suhjectofmyinvention,power oneshoulder, '60, on one side of the cam and being transmitted from this sleeve when it is the shoulder to on the opposite side of'the 3 5 clutched. The sleeve, forinstance, mayform cam. 5 part of a hoisting or hauling barrel. The A power-driven wheel or pulley, J, is loose I sleeve may be arranged to slide on but turn on the shaft I, and this wheel is recessed on with the shaft, and the object to which the one side, and has internal ratchet-teeth, as sleeve has to be clutched may be loose on the shown inFig. 3. A lever, L, pivoted to-a col- 4 h lar, K, secured to the shaft, has a short arm,

Dis the clutch-lever, pivoted at its lower forming apawl adapted to the internal ratchetend, (I, in any suitable manner, to the frame teeth of the wheel J, the long arm being proof the machine to which the device may be apvided with a pin,'w, which projects through an plied, this lever being so adapted to a groove, elongated opening in the flange e of the said 5 e, in the sleeve that the latter must slide to collar K. A spring, 2, is secured at one end and fro on the shaft A as the said lever is vito this collar, passes partly round the same, brated. The clutch-lever is provided with a and bears near its outer end against the propin, f, which is caused to bear against the jecting pin a: of the pawl-lever, the tendency scroll-flangefi ofa cam, E, bya spring, i, which ;of the spring being to maintain the pawl in 50 connects the lever to any fixed part of the gear with the ratchet-teeth of the wheel. too

There is a projection, 3, on the cam Gr,and. with this projection the pin a of; thepawl comes in contact under the circumstances explained hereinafter; but when thus brought into contact the pin 00 will yield to an extent limited by the elongated opening in the flange of the collar, and this yielding of-thesaidgpinw is suf ing to the pin 00 of the pawl-lever being in con-- tact with the projection f the-03,1116, whilethe latter has been arrested by the pin q. The locking lever has been raised by the pin 19 of the lever H, and the-spiral flange h of the cam,

E, acting on the pin f of the clutch-lever, has so I moved the latter that the sleeve B is unclutched from the wheel e, as stated above. While the several partsare in these positions the shaft 1, cams E and G, and collar K are stationary, while the wheel J continues to revolve in the direction of the arrow, the clutch meanwhile being locked'in its position, for the bearing of the pin f of the clutch-lever against the flange h of the camE, caused by the spring i, prevents any such movement of the clutchlever as to cause the clutching of the sleeve B to the wheel a. As long as the moving parts are.

in this position, Fig. 1, the sleeve is free from the control of the shaft A. By so moving the lever H'that its pin q will leave the shoulder to, Fig. 1, and coincide with the spiral groove t, the following movements will take place: The cam G ceasing to be retained by thepin q, the spring2, which has been under tension, will yield, and so act on the pawl-lever as to throw the pawl intogear with the ratchet-teeth on the wheel J, when the cam Gr must, through the medium of the pawl, ratchet, and collar, turn with-the shaft, and the cam E must also turn with the said shaft. The pin q of thelever'H will now be under the influence of the spiral groove t of the cam G, and this groove is such that it will move the lever H to the position shown in Fig. 2, during which movement the cam E, turning with the shaft, permits the springt'to draw the clutch-lever I) in the direction of the arrow y, and to clutch the sleeve B to the shaft A, the pin 19 of the lever E having permitted the locking-lever F to fall and retain the levers, and consequently hold the sleeveB in its clutched condition. When the cam is arrested by its shoulder w coming into contact with the pin qthe pawl is thrown out ofgear with the ratchet-teeth of the wheel J, and the rotation of the shaft I, the collar K, and both cams will cease, and they several parts will remain in this condition until the-lever His so moved thatits pin will coincide with the spiral The shoulder w of the scroll-cam G has groove 25 of the cam G, when the sleeve will be unclutched from the wheel a; on the shaft, and the several parts will again assume the positions shown in Fig. 1.

It will be noticed that the cam G is permitted to have a slight movement on the shaft independently of the collar, this independent movement beingsufficient to permitthe proper action of the pawl lever.

The clutching and unclutching of the sleeve, it will be observed, is effected by the powerdriven wheel J, through the intervention of mechanism described, and in obedience to the movement of the pin g, which may be effected by hand, but which,in most cases,will be actuated automatically from some working part 'of the machine to which the invention is applied, the power to unclutch being positive and direct, while the clutching, which requiresa less effort, is effected by a'spring controlled by thecam E. There can be no unclutching of the sleeve untilthe locking-lever is elevated, and there can be no unclutchinguntil the turning of the cam E, with the shaft 1, permits the springi to perform, this duty, and neither clutching nor unclutching can be effected-without first operating the pin g, It is not essential that this pin should be attached to a lever. It may, for instance, beconnected toa sliding bar operated to the limited extent necessary, a very slight effort being required to move the pin, as it is merely the indirect means of inducing power-driven mechanism to clutch and unclutch the sleeve.

The invention may be applied to many different kinds of machines. The sleeve 3 may, for instance, be attached to or form a part of a hoisting-barrel, the pin being automatically operated when the load has reached the desired height; or the device may be used in,

connection with the well-known duplex clutch and reversing-gear. There may be more than two spiral grooves and more than two shoulders on the cam G. I have, for instance, used a cam with four shoulders in connection with machinery for drawing in and moving out the carriage of a self-acting mule, the mode of operation being the same as that described above-that is, the causing of a power-driven wheel, through intervening mechanism, to do the worl; of clutching and unclutching in obedience to the movement of a pin, g, which is; brought-under theinflnence of differentgrooves I in a cam.

The precise arrangement and construction of parts described above need not be adhered to. Indeed, different applications of the invention may demand different disposals and arrangements of parts.

I claim as my invention 4 1. Thecombinatioii, in clutching-gear, of the following elements-namely: first, a clutch and clutchoperating lever; second, devices for locking-and unlocking the said lever, andfor operating the same when unlocked; third,

a cam having two or more grooves communieating with each other for operating the locking and unlocking devices and, fourth, me-

chanism whereby the said cam and its two grooves and the device for clutching and unolutching are brought into action when the locking and unlocking device is transferred from the control of one grooveof the cam to extension F with the pivoted lever H and it,

pin 11, substantially as specified.

3. The combination of the clutch and clutchoperating the clutch-lever, and another cam,

G, for operating the locking-lever, snbstantially as described. a

4, The combination of a shaft, I, a collar, 20 K,lsecured thereto, a power-driven wheel or pulley, J, on the said shaft, and the spring pawl-lever L, with the cam G, having a projection, 3, grooves, and abruptshoulders Where the grooves communicate, and with a movable 25 pin, q, all substantially as set forth.

In testimony whereofIhavesigned my name to this specification, in the presence of two subscribing witnesses.

HAMILTON L. MOULTON.

Witnesses:

HARRY DRURY, HARRY SMITH. 

